BA4908

03W201A System Regulator for Car Stereo BA4908 6.5 ± 0.5 7.0 ± 0.1 6.9 ± 0.1 Description BA4908 is a system regulator IC for car stereo. This IC incorporates 1 channel of 5.6V output, 2 channels of 8.7V output and 2 channels of high side switch. Dimension (Unit : mm) 29.8 ± 0.2 24.0 ± 0.1 4.7 ± 0.2 R1.8 13.9 ± 0.3 1 12 21.6 ± 0.5 Features 1) PNP output and low drop out type (Except AMP and ANT) 2) Built-in output current limit circuit to protect IC from destruction by short 3) Built-in over-voltage protection circuit to deliver strong design for surge input to BACK UP and Vcc 4) 12 pin power package perfect for space saving design 5) Built-in thermal protection circuit to protect IC from thermal destruction 1.2 2.54 0.6 1.2 0.4 ± 0.1 SIP-M12 Applications Car stereo Absolute Maximum Ratings (Ta=25˚C) Parameter Power supply voltage Power dissipation Operating temperature range Storage temperature range Symbol Vcc Pd Topr Tstg -30 -55 Limits 24 3000 ∗ ~ ~ Unit V mW +85 +150 ˚C ˚C ∗Derating : 27.2mW/˚C for operation above Ta=25˚C Recommended Operating Conditions (Ta=25˚C) Parameter Symbol Recommended supply voltage Vcc Operating voltage range Vcc Min. 10 6.3 Typ. 13.2 13.2 Max. 16 24 Unit V V ∗Electric characteristic is not guaranteed. (Especially at low input voltage) Electrical characteristics (Unless otherwise noted: Ta=25˚C, Vcc=13.2V) Parameter Circuit current at standby Output voltage(VDD)1 Minimum I/O voltage difference Output current capacity Output voltage(COM)2 Minimum I/O voltage difference Output current capacity I/O voltage difference(AMP)3 Output current capacity I/O voltage difference(ANT)4 Output current capacity Output voltage(TUNER5.6)5 Minimum I/O voltage difference Output current capacity Output voltage(TUNER8.7)6 Minimum I/O voltage difference Symbol IST VO1 ∆VO13 IO1 VO2 ∆VO23 IO2 ∆VO31 IO3 ∆VO41 IO4 VO5 ∆VO53 IO5 VO6 ∆VO63 Min. 5.30 100 8.25 150 500 500 5.3 150 8.25 250 Typ. 0.55 5.60 0.3 200 8.70 0.4 300 1.0 900 1.0 900 5.6 0.4 300 8.70 0.4 500 Max. 0.80 5.90 0.7 9.15 0.7 1.5 1.5 5.9 0.7 9.15 0.7 - Unit mA V V mA V V mA V mA V mA V V mA V V mA Conditions STAN BY pin = 0V IO1=80mA IO1=80mA VO1≥5.3V IO2=120mA IO2=120mA VO2≥8.25V IO3=400mA VO3≥11.7V IO4=400mA VO4≥11.7V IO5=50mA IO5=120mA VO5≥5.3V IO6=140mA IO6=200mA VO6≥8.25V Output current capacity IO6 ∗ This product is not designed for protection against radioactive rays. ∗ Output current capacity must be set below MINIMUM of the specification. Block Diagram Regulator Over voltage protection BA4908 N.C. TUNER TUNER 8.7 5.6 ANT SW SW 1 2 3 STB 4 VDD 5.6V 5 AMP 6 Vcc 7 ANT 8 COM TUNER TUNER 8.7V 5.6 8.7 9 10 11 GND 12 Appendix Notes No technical content pages of this document may be reproduced in any form or transmitted by any means without prior permission of ROHM CO.,LTD. The contents described herein are subject to change without notice. The specifications for the product described in this document are for reference only. Upon actual use, therefore, please request that specifications to be separately delivered. Application circuit diagrams and circuit constants contained herein are shown as examples of standard use and operation. Please pay careful attention to the peripheral conditions when designing circuits and deciding upon circuit constants in the set. Any data, including, but not limited to application circuit diagrams information, described herein are intended only as illustrations of such devices and not as the specifications for such devices. ROHM CO.,LTD. disclaims any warranty that any use of such devices shall be free from infringement of any third party's intellectual property rights or other proprietary rights, and further, assumes no liability of whatsoever nature in the event of any such infringement, or arising from or connected with or related to the use of such devices. Upon the sale of any such devices, other than for buyer's right to use such devices itself, resell or otherwise dispose of the same, no express or implied right or license to practice or commercially exploit any intellectual property rights or other proprietary rights owned or controlled by ROHM CO., LTD. is granted to any such buyer. Products listed in this document use silicon as a basic material. Products listed in this document are no antiradiation design. The products listed in this document are designed to be used with ordinary electronic equipment or devices (such as audio visual equipment, office-automation equipment, communications devices, electrical appliances and electronic toys). Should you intend to use these products with equipment or devices which require an extremely high level of reliability and the malfunction of with would directly endanger human life (such as medical instruments, transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers and other safety devices), please be sure to consult with our sales representative in advance. About Export Control Order in Japan Products described herein are the objects of controlled goods in Annex 1 (Item 16) of Export Trade Control Order in Japan. In case of export from Japan, please confirm if it applies to "objective" criteria or an "informed" (by MITI clause) on the basis of "catch all controls for Non-Proliferation of Weapons of Mass Destruction. Appendix1-Rev1.0